Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c6ee17430dc0d96…

MALICIOUS

PDF

45.8 KB Created: 2020-08-10 04:20:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16ef44d39a33355d52fe59a3995187e8 SHA-1: 46a49c5229b67f612814eb4feae4e3e3e3a7fd50 SHA-256: 1c6ee17430dc0d968843b97c29eb5e069afc56d800cef8d8b130e43905ae02a6
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF file contains a high number of embedded links, many of which point to a redirector service (ttraff.cc). The document body, though heavily obfuscated, contains text suggesting a lure related to 'data analysis open source tools pdf' and a call-to-action, consistent with social engineering tactics. The presence of a malicious redirector link indicates an attempt to lead the user to a malicious site or download further malware.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=data+analysis+open+source+tools+pdf
    • http://veselu.lizstanton.com/uploads/1/3/0/8/130814328/1288847.pdf
    • http://befun.moldova-ministry.org/uploads/1/3/0/8/130873851/fapefapujazugo.pdf
    • http://fazikep.elitehometeamllc.com/uploads/1/3/0/7/130738943/3256464.pdf
    • https://cdn.shopify.com/s/files/1/0433/8342/3126/files/24932776538.pdf
    • https://cdn.shopify.com/s/files/1/0437/6710/3645/files/71537682742.pdf
    • https://cdn.shopify.com/s/files/1/0431/2888/1313/files/java_compress_string.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2540/files/tonejefik.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/63578225869.pdf
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/90678344725.pdf
    • https://cdn.shopify.com/s/files/1/0434/6704/7077/files/niwujupagizizuxuzumolog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23083433767.pdf
    • https://cdn.shopify.com/s/files/1/0433/4839/4143/files/15900106348.pdf
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/74382294718.pdf
    • https://cdn.shopify.com/s/files/1/0434/6868/5464/files/88798391388.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074b2.bin
5a87b9b360ef86a24a0c47e6cdb837e66167e34d2f9ac207bbd9665de45da0c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B2 5248 bytes
font_01_sfnt_off000086b2.bin
a47a283d0960291e5c7d91d7000c97356eb4c4195e49141d88cbfe1f9caf92b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86B2 10488 bytes

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